The Nyquist sampling rate for the signal s(t) = $\dfrac{sin(500 \pi t)}{\pi t}$ $\times$ $\dfrac{sin(700 \pi t)}{\pi t}$ is given by
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The Nyquist sampling rate for the signal s(t) = $\dfrac{sin(500 \pi t)}{\pi t}$ $\times$ $\dfrac{sin(700 \pi t)}{\pi t}$ is given by